Abstract : This work represent a very brief and complex on the same time presentation of the actual situation in some Balkan countries - especially Serbia, on their way to the European Union EU. The aim is to present clearly the -European conditions- necessary to be fulfilled by candidate and potential candidate countries from Western Balkan who wish to join EU in the near future. Here is presented at the same time condition, requirements and actual situation of Serbia. Also, some important aspects, done by the EU and all instances and institutions from the EU are clearly presented. The Agenda of the EU which is treated present-future enlargements is based on the strategy, which consists of three basic principles: consolidation, dependence and communication; so this covers the Western Balkans, and analyse different levels on their way to the EU. Having this entire in mind we present how it could be possible for some Western Balkan countries to join EU in the near future. The starting point of this research is a theoretical analysis of European integration, which, from a theoretical point of view, gives the answer to the questions of strengths, weaknesses, opportunities.